Arredondar pela metade

Half Up é o método padrão do estilo escolar e geralmente é a expectativa padrão.

🔢
Calculadora de arredondamento
Insira um número e escolha suas preferências de arredondamento
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🪄 Exemplos rápidos
📋 How It Works

Como funciona

1

Step 1

Select the place value and inspect the deciding digit.

2

Step 2

If the deciding digit is 5 or greater, round upward.

3

Step 3

Return the rounded value at the chosen precision.

📊 Examples

Exemplos trabalhados

Examples include tie values in decimal and whole-place contexts.

Entrada Alvo Método Resultado
2.5 Número inteiro mais próximo Arredondar pela metade 3
7.45 Décimo mais próximo (1 dp) Arredondar pela metade 7.5
1250 Cem mais próximos Arredondar pela metade 1300
Dicas

Erros Comuns

Avoid these frequent rounding errors when validating outputs.

  • Using Half Up where unbiased tie handling is required.
  • Assuming Half Up and Half Even are equivalent.
  • Ignoring sign behavior when comparing with directional methods.
  • Confusing nearest rounding with truncation.
❓ Perguntas frequentes

Perguntas frequentes

When is Half Up best to use?
Use it when your rule is the familiar '5 rounds up' standard.
How is Half Up different from Half Down?
Half Up rounds ties upward, while Half Down rounds ties downward.
How is Half Up different from banker's rounding?
Banker's rounding sends ties to even outcomes instead of always up.
Can I change place values on this page?
Yes. Method is locked to Half Up, but place values are editable.